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When you come into a large sum of money—perhaps from an unexpected windfall—you'll need to decide how to invest it. Should you invest everything upfront (lump-sum investing) or spread it over time (dollar-cost averaging)? There aren't any 'secrets' to investing before diving in, I'm afraid. Both approaches have their advantages, but as with all investments, it comes down to how much risk you're comfortable taking. Here's what you need to know to choose between lump sum investing and dollar cost averaging.
What does lump-sum investing mean?
Lump-sum investing is when you invest your entire available amount at once, instead of breaking it up into smaller, incremental investments over time. According to Experian, lump-sum investing outperforms dollar-cost averaging 75% of the time for stocks and 90% of the time for bonds. (However, it's important to note that future market performance can't be predicted, and historical performance doesn't guarantee future results.)
The reason is straightforward: Markets generally trend upward over time. The longer you keep your money out of the market, the more likely you are to miss out on potential gains. An old investing adage puts it best: 'Time in the market beats timing the market.' If you're able to handle market volatility—seeing your balance fluctuate up and down—lump-sum investing can lead to substantial rewards in the long term.
What exactly is dollar-cost averaging?
For those who are new to investing or tend to be more risk-averse, dollar-cost averaging (DCA) is a strategy that helps you avoid the anxiety of trying to 'time the market.' With DCA, you invest a set amount at regular intervals—such as investing $1,000 each month for a year, rather than putting $12,000 in all at once. While DCA may not always produce the highest returns, it reduces the chances of regret if the market drops shortly after you invest. Compared to lump-sum investing, DCA is often better suited for those with a steady income, those prone to panic selling during market declines, or anyone who prefers a more cautious and consistent approach.
How do you determine which investment strategy is right for you?
Keep these factors in mind when deciding between the two investment strategies:
Risk tolerance. If fluctuations in the market keep you awake at night, dollar-cost averaging (DCA) may be a good option despite the potential for slightly lower returns.
Market conditions. In times of heightened uncertainty or market swings, DCA can offer reassurance and a smoother investing experience.
Time horizon. Longer-term investors are often better suited for lump-sum investing, as the impact of short-term market movements becomes less significant with time.
Source of funds. If you're investing a large one-time windfall, such as an inheritance or a bonus, a lump sum might be a better choice. For steady income, DCA could be a more appropriate strategy.
Some investors opt for a balanced approach, allocating a substantial amount up front in a lump sum while using DCA for the remainder. This method allows them to enjoy the statistical benefits of lump-sum investing while still gaining the emotional comfort that DCA provides.
The final takeaway
From a purely mathematical perspective, lump-sum investing typically delivers superior returns over time. However, investing is not solely about numbers—it's also about peace of mind and maintaining your strategy during market volatility. If DCA helps you stay the course and avoid emotionally driven decisions, the slightly reduced returns may be a worthwhile trade-off.
Ultimately, the best approach is the one that you can follow consistently over the long term. If you find yourself dealing with a substantial sum of money and feeling uncertain, seeking advice from a reliable financial advisor can provide invaluable guidance.
